Wrench.



J. KISH.

WRENCH.

`APPLICATION min SEPT. 9. 1914.

l ,141 ,7 l 5. Patented J une 1, 1915.

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JOSEPH KISIEI, OF COBALT, ONTAB/IO, CANADA.

` wennen.

T all wlw/m it may concern.' Y

Be it known that I, JOSEPH KIsH, asubj ect of the King of Hungary,residing at Cobalt, Ontario, Canada, have invented certain new anduseful Improvements in l/Vrenches, of which the following is `aspecification.

This invention relates to certain new and useful improvements inwrenches.

An object of the invention is to provide a wrench of the Stilson typewith a pair of xed jaws upon one side of the shank handle and providedwith a pair of rack jaws, relatively movable and in alinement with thesaid shank handle.

A further object of the invention is to provide a wrench embodying rigidaws that the same.

are movable by nut and thread connection Vand forming rack teeth on theouter end of Y the shank handle in combination with a movable rackmember carried by the outer rigid jawV to provide pipe gripping means.

With the above general objects in view and others that will appear asthe nature of the invention is better understood, the same consists inthe novel construction, combination and arrangement of part-s to behereinafter more fully described and then claimed, and in describing theinvention in detail, reference will be had to the accompanying drawingsby like characters designating corresponding parts throughout theseveral views,`and wherein l Figure 1 is a side elevation of my improvedwrench. Fig. 2 is an edge view of Fig. 3 is a cross-sectional view takenon line IIIhIII of Fig. l. Fig. 4 is a cross-sectional view taken online IV-IV of Fig. 1. Fig. 5 is a detail perspective view of the pivotedouter rack jaw. l

Referring more in detail to the `accompanying drawings, the referencenumeral 10 designates the shank of the wrench with the handle 11 and asshown in Fig. 4, being preferably rectangular in cross-section.

The inner jaw member V12 is best illustrated in Fig. 5 having the outerface there-` of roughened as at 13 to provide aV gripping surface. Thejaw member 12 is provided with a longitudinal opening 14, which openingis reduced as at 15 as shown in Fig. 5 to provide side members 16 toengage the sides of the rectangular shank 10 to prevent relative rotarymovements of the jaw 12 and the said shank. The side members 16 areclosed at their outer ends as at 17 to limit the inner Specification ofLetters Patent.

Patented J une 1, 1915.

Application filed September 9, 1914. Serial No. 860,958.

- jaw in its swinging movement and further to provide a stop or contactfor the flat spring 18 secured adjacent the outer end of the shank 10with its free inner end engaging the said part 17. Alined openings areprovided adjacent the upper edge of the jaw 12 and through which extendsa pin 20 const ituting a pivotal support therefor, the said pm alsoextending through the shank 10 as best seen in Fig. 4. A. second flatspring 21 1s secured to the shank 10 and at its free outer end is inengagement with a cross pin 22- extendingl transversely of the jawopening 14.V It is to be noted that the springs 18 and 21 will limit inboth directions the pivotal movement of the inner jaw 12, and at thesame time cushion the same to relieve the jaw of sudden shocks and jars.

The jaw 12 is mounted on the shank 10 as above described with theenlarged opening 14 positioned laterally of the shank and adapted toreceive the grooved shank 22 of the outer jaw 23. Transverse openings 24are provided in the inner jaw 12 and constitute a seat for the operatingnut 25 through which the threaded shank 22 eX- tends and by which thesaid shank is moved in an inward and outward direction. outer jaw 23consists of the rigid member 26 operating in connection with thegripping surface 13 of the inner jaw 12. The jaw member 23 is providedwith a socket or recess for the reception of thestem 27 of a movableouter rack jaw 28. An annular groove 29 is formed in the stem 27 andreceives the end of a fastening screw 30 threaded into the member 23,while the base of the said socket receives thrust bearing balls 31 torelieve the stem 27 of wear and afford an easy turning movement of therack jaw 28. The outer end of the shank 10 is provided with a rack jaw32 coperating with the pivoted outer rack jaw 28 and is particularlyadapted for gripping round bodies or surfaces of irregular contour.

Ey providing the springs 18 and 21 and pivoting the inner jaw 12 to theshank 10, the jaws are relieved of undue strains by the cushioningeffect of the said springs, which will render the wrench more efficientin operation. It is to be noted that the rack jaws 28 and 32 are inalinement with the shank handle 10 which assures astronger device and bypivotally-mounting the outer The Y rack aiv 28 as above described, thesaid rack Y YIt is believed that the above descriptionV of the inventionwill render the device clearly operative and while I have shown anddescribed the preferred embodiment of the present invention, I do notWish to confine myself to the exact details of construcf tion shown,asvarious forms, modifications and arrangements oiV the parts as shown mayhe made Without departing from the spirit and scope of the invention asclaimed.

Vhat I claim as new is A Wrench comprising a shank having a jan7 at itsouter end, a sleeve pivoted to said shank, an outer jaw shankslidably-mouned in said sleeve, said outer jaw shank having a socketformed therein, an auXiliaryjavv, a stem carried bythe auxiliary jawreceivedy in -said socket, ball bearingsbetween the end of the stem andthe bottomV of the socket,

Vsaid stem having -a peripheral annular groove adjacent its end, and aretaining screw threaded into the outer jaw shank having its inner endreceived in the stem groove.' In testimony whereof I afx my signature inpresence of two witnesses. Y Y

. JOSEPH KISH.' Vitnesses: i i

JOSEPH BUDA, Y W. VF. MACPHIE.

Copies 0f this patent may be obtained fo'rkve cents eac11,.by addressingthe Commissioner of Patents.

Washington, 111C. f

